While troubleshooting a network connectivity problem, a technician observes steady link lights on both the workstation NIC and the switch port to which the workstation is connected. However, when the ping command is issued from the workstation, the output message "Request timed out." is displayed. At which layer of the OSI model does the problem most likely exist（）。
第1题：
A. incorrect DSL network redistribution
B. incorrect static host route configuration
C. incorrect static customer route configuration
D. incorrect default static route configuration on the end user
第2题：
A workstation is having connectivity issues when being added to the domain. Which of the following commands would allow the administrator to see the DNS and WINS servers that are currently configured for the workstation?（）
A.Ipconfig
B.Nslookup
C.Netstat
D.Nbtstat
第3题：
While troubleshooting a connectivity problem on the network, you issue the ping command from your PC command prompt, but the output shows "request times out."
At which OSI layer is this problem associated with?
A．The data link layer
B．The application layer
C．The access layer
D．The session layer
E．The network layer
第4题：
While troubleshooting a connectivity problem, a network administrator notices that a port status LED on a Cisco Catalyst series switch is alternating green and amber. Which condition could this indicate（）。
A.The port is experiencing errors
B.The port is administratively disabled
C.The port is blocked by spanning tree
D.The port has an active link with normal traffic activity
第5题：
A.A remote physical layer problem exists.
B.The host NIC is not functioning.
C.TCP/IP has not been correctly installed on the host.
D.A local physical layer problem exists.
第6题：
A. Allow the user to demonstrate expertise.
B. Do not argue; empathize with the user, and offer to help.
C. Ask the user to watch as the technician diagnoses and corrects the problem.
D. Document each of the steps to replicate at a later time.
第7题：
A network technician wants to use a packet analyzer to troubleshoot a reported problem with auser‘s workstation with IP address 192.168.1.45. To identify the workstation‘s packets thetechnician wants to use the workstation‘s MAC address.Which of the following protocols would provide the needed information?（）
A.DHCP
B.ARP
C.DNS
D.PING
第8题：
While troubleshooting a network connectivity problem, a Ezonexam technician observes steady link lights on both the workstation NIC and the switch port to which the workstation is connected. However, when the ping command is issued from the workstation, the output message "Request timed out." is displayed. At which layer of the 7-layer OSI model does the problem most likely exist?
A. The data link layer
B. The application layer
C. The protocol layer
D. The access layer
E. The session layer
F. The network layer
G. None of the above
第9题：
While troubleshooting a network connectivity problem, a technician observes steady link lights on both the workstation NIC and the switch port to which the workstation is connected. However, when the ping command is issued from the workstation, the output message "Request timed out." is displayed. At which layer of the OSI model does the problem most likely exist（）。
A.the session layer
B.the protocol layer
C.the data link layer
D.the access layer
E.the network layer
F.the application layer
第10题：
A technician is troubleshooting a network connectivity issue on a MFD and would like to eliminate the possibility of another device on the network having the same IP address. The technician should：（）